Étude expérimentale de la mobilisation du fer fer des sols sous l'influence des litières forestières PDF Download
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Author: P. Lossaint
Publisher:
ISBN:
Category :
Languages : fr
Pages : 107
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Book Description
Author: P. Lossaint
Publisher:
ISBN:
Category :
Languages : fr
Pages : 107
Get Book Here
Book Description
Author: P.. Lossaint
Publisher:
ISBN:
Category :
Languages : fr
Pages : 107
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Book Description
Author: P. Lossaint
Publisher:
ISBN:
Category :
Languages : fr
Pages :
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Author: R. Duchaufour
Publisher: Springer Science & Business Media
ISBN: 9401160031
Category : Science
Languages : en
Pages : 476
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Book Description
This book is the first of two volumes intended to replace the old and now out of print Precis de pedologie, the previous three editions of which were pro duced by the same publisher in 1960, 1965 and 1970. It was apparent that the term 'precis', which means that the text was neces sarily condensed and summarised, no longer corresponded with the present day situation, for pedology has developed considerably in the past 10 years and it now makes use of the most modern and varied research techniques. It has become an entirely separate discipline and has assumed, at least in certain countries, considerable importance. In addition, different schools of thought have developed and their sometimes contradictory viewpoints are presented at many international conferences, which, if valid conclusions are to be reached from them, required considerable space for discussion. Thus, even by being very concise it was no longer possible to deal with the whole of soil science within the space of one volume, so that a two volume format became a necessity. As soil science is known to have two fundamentally distinct aspects, it has been easy to determine the contents of each volume and also to give each an identity and unity, as well as enabling a different kind of presentation to be made in each case.
Author:
Publisher: Academic Press
ISBN: 0080566952
Category : Technology & Engineering
Languages : en
Pages : 443
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Book Description
Advances in Ecological Research
Author: Georges Millot
Publisher: Springer Science & Business Media
ISBN: 3662416093
Category : Science
Languages : en
Pages : 443
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Book Description
Author: R. Knapp
Publisher: Springer Science & Business Media
ISBN: 9401023441
Category : Science
Languages : en
Pages : 333
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Book Description
During the International Botanical Congress in Edinburgh, 1964, Mrs. 1. M. WEISBACH-J UNK of The Hague discussed a plan for preparation by her publishing company (Dr. W. Junk b.v.) of an international Handbook of Vegetation Science. She proposed a series that should give a comprehensive survey of the varied directions within this science, and their achievements to date as well as their objectives for the future. The challenge of such an enterprise, and its evident value for the further development of vegetation research, induced the undersigned after some consideration to accept the offer of the honorable but also burdensome task of General Editor. The decision was encouraged by a well formulated and detailed outline for the Handbook worked out by the Dutch phytosociolo gists J. J. BARKMAN and V. WESTHOFF. A circle of scholars from numerous countries was invited by the Dr. Junk Publishing Com pany to The Hague in January 1966 to draw up a list of editors and contributors for the parts of the Handbook. The outline and list have served since for the organization of the Handbook, with no need for major change. The different burdens of editors and authors have compelled quite different timings for completion of the individual sections.
Author: Roger Maignien
Publisher:
ISBN:
Category : Laterite
Languages : en
Pages : 168
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Book Description
Background, definition and scope of the problem; Morphological and analytical characteristics of laterites; Global distribution of laterites; Origin of laterites; Classification of laterites.
Author: N. W. Lepp
Publisher: Springer Science & Business Media
ISBN: 940098099X
Category : Science
Languages : en
Pages : 267
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Book Description
Trace metals occur as natural constituents of the earth's crust, and are ever present constituents of soils, natural waters and living matter. The biological significance of this disparate assemblage of elements has gradually been uncovered during the twentieth century; the resultant picture is one of ever-increasing complexity. Several of these elements have been demonstrated to be essential to the functions of living organisms, others appear to only interact with living matter in a toxic manner, whilst an ever-decreasing number do not fall conveniently into either category. When the interactions between trace metals and plants are considered, one must take full account of the known chemical properties of each element. Consideration must be given to differences in chemical reactivity, solubility and to interactions with other inorganic and organic molecules. A clear understanding of the basic chemical properties of an element of interest is an essential pre-requisite to any subsequent consideration of its biological significance. Due consideration to basic chemical considerations is a theme which runs through the collection of chapters in both volumes.
Author:
Publisher:
ISBN:
Category : Laterite
Languages : en
Pages : 162
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Book Description
